Advanced Synthesis and Catalysis, volume 356, issue 14-15, pages 3092-3098
Heterogeneous Copper-Catalyzed Cascade Three-Component Reaction of Amines, Carbon Disulfide and 2-Iodoanilines Leading to 2-Aminobenzothiazoles
Hong Zhao
1, 2
,
He Wen
3
,
Ruiya Yao
3
,
Mingzhong Cai
3
2
School of Chemistry and Chemical Engineering, GuangDong Pharmaceutical University, Guangzhou 510006, People's Republic of China
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Publication type: Journal Article
Publication date: 2014-09-21
Journal:
Advanced Synthesis and Catalysis
scimago Q1
SJR: 1.020
CiteScore: 9.4
Impact factor: 4.4
ISSN: 16154150, 16154169
General Chemistry
Abstract
The heterogeneous cascade three-component reaction of amines, carbon disulfide (CS2) and 2-iodoanilines was achieved in dimethylformamide (DMF) at 110 °C in the presence of 10 mol% of 3-(2-aminoethylamino)propyl-functionalized MCM-41-immobilized copper complex [MCM-41-2N-CuCl] using potassium carbonate (K2CO3) as base, yielding a variety of 2-aminobenzothiazoles in good to excellent yields. This heterogeneous copper catalyst influences the selectivity of the reaction and can be recovered and recycled by a simple filtration of the reaction solution and used for at least 10 consecutive trials without any decreases in activity.
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